Cat 777 vs Cat 793

The Cat 777 is ahead on: faster, narrower to transport, lower to transport. The Cat 793 is ahead on: more power, dumps higher, lifts or carries more, bigger fuel tank.

Below, every figure both makers publish sits side by side, with the Cat 777 and the Cat 793 drawn to the same scale from their dimension drawings.

Cat · rigid dump truck
Cat 777
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Cat · rigid dump truck
Cat 793
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At a glance

Bold is the machine ahead on each figure, with its lead.

Figure	Cat 777	Cat 793
Gross powerHigher is better	765 kW	1,801 kW+135%
Dump height (body raised)Higher is better	9.953 m	13.69 m+38%
Payload (nominal)Higher is better	97.3 t	232 t+138%
Fuel tankHigher is better	1,140 L	4,354 L+282%
Top speedHigher is better	67.1 km/h+24%	54.3 km/h
Overall widthLower is better	6.2 m+28%	8.6 m
Overall height (canopy)Lower is better	5.177 m+24%	6.81 m
Overall length	10.004 m	13.64 m

All specifications

Every figure the makers publish. Search for one, or show only those that differ.

Differences only(57)

FigureCat 777 Cat 793

Dimensions

Overall length10.004 mDual slope body (flat floor body 10.227 m)13.64 m

Overall width6.2 mOverall canopy width8.6 mOverall canopy width

Overall height (canopy)5.177 m6.81 mFront canopy height

Wheelbase4.57 m5.9 m

Loading height (empty)4.38 mDual slope body (flat floor body 4.429 m)6.17 m

Dump height (body raised)9.953 m13.69 m

Ground clearance0.896 m1.11 m

Height to top of ROPS4.73 mLoaded5.63 m

Overall body length9.555 mDual slope body (flat floor body 10.070 m)Not published

Inside body length6.92 mDual slope body (flat floor body 7.186 m)Not published

Rear axle to tail3.045 mDual slope body (flat floor body 3.265 m)3.62 m

Dump clearance0.89 mDual slope body (flat floor body 0.818 m)1.63 m

Inside body depth (maximum)1.895 mDual slope body (flat floor body 1.777 m)Not published

Operating width (extended catwalk)6.545 mNot published

Centre line front tyre width4.163 m5.61 m

Overall front tyre width4.961 mNot published

Engine guard clearance0.864 m1.294 m

Outside body width5.524 mDual slope body (flat floor body 5.689 m)7.996 m

Inside body width5.197 mDual slope body (flat floor body 5.450 m)7.27 m

Rear axle clearance0.902 m1.23 m

Centre line rear dual tyre width3.576 m5.09 m

Overall tyre width5.262 mOver rear duals; all bodies7.6 mOver rear duals

Body dump angle49°Not published

Weight

Payload (nominal)97.3 t232 tNominal rated payload, 40R57 tyres

Gross machine operating weight163,360 kgTarget gross machine weight383,739 kgRated gross machine weight, 40R57 tyres

Empty operating weight66,083 kgNot published

Body weight16,047 kg32,072 kg

Weight distribution, empty (front/rear)46% / 54%48.8% / 51.2%

Weight distribution, loaded (front/rear)30% / 70%33% / 67%

Chassis weightNot published119,271 kgWith full fuel and fluids

Body

Body capacity (SAE 2:1 heaped)60.1 m³152-191 m³

Body capacity (struck)41.9 m³Dual slope body (flat floor 43.1 m³)Not published

Body raise time15 sHigh idle; lower (float) 13 s19.8 sHigh idle; lower (float) 19.9 s

Hoist pump flowNot published854 L/minHigh idle

Engine

Engine modelCat C32BCat 3516E

EmissionsChina Nonroad Stage III, equivalent to U.S. EPA Tier 2U.S. EPA Tier 1 equivalent

Cylinders12Not published

Displacement32.1 L78 L

Gross power765 kW (1,025 hp)SAE J1995, at 1,800 rpm1,801 kW (2,415 hp)SAE J1995, at 1,750 rpm

Net power711 kW (953 hp)SAE J1349 / ISO 9249, at 1,800 rpm1,694 kW (2,272 hp)SAE J1349

Max torque5,130 NmNet, at 1,200 rpm; 36% torque riseNot published

Bore x strokeNot published170 mm x 215 mm

Performance

Top speed67.1 km/hLoaded, 7th gear, 27.00R49 (E4) tyres54.3 km/hLoaded, 6th gear

Turning diameter25.3 m29.36 m

Steering angle31°30°

Transmission

Transmission7F/1R automatic powershift6F/1R

Total reduction ratio19.18:1Differential 2.74:1, planetary 7.00:128.8:1Differential 1.8:1, planetary 16:1

Tyres

Tyres27.00R49 (E4)Standard40.00R57 (standard); 46/90R57 optional

Service capacities

Fuel tank1,140 L4,354 L4922 L optional

Cooling system212 L852 L

Engine oil, with filter115 LCrankcase291 LCrankcase

Differentials222 LNot published

Final drives (each)42 LNot published

Steering system, with tank60 L291 L

Brake/hoist system, with tank420 L1,070 L

Torque converter/transmission system125 L227 LIncludes sump

Differential and final drivesNot published1,022 L

Service intervals

Coolant12,000 hours12,000 hours

Sources: Cat 777-05 Off-Highway Truck Technical Specifications AEXQ2677-05 (09-2026) (Afr-ME, Asia Pacific, SE Asia, S. Am) · Cat 793 (04) Mining Truck specifications TELQ0260 (05-2026) (Afr-ME, Asia Pacific, CIS, China, India, LACD, SE Asia ...)

Drawn to scale

Side views measured off each maker's dimension drawing, front edges and ground lined up.

Cat 777Cat 793Same scale, front edges and ground lined up.

Cat 777 vs Cat 793: questions

Which has more power, the Cat 777 or Cat 793?

The Cat 793: Cat 777 765 kW (1,025 hp), Cat 793 1,801 kW (2,415 hp) (gross power), a 135% difference.

Which lifts or carries more, the Cat 777 or Cat 793?

The Cat 793: Cat 777 97.3 t, Cat 793 232 t (payload (nominal)), a 138% difference.

Which has the bigger fuel tank, the Cat 777 or Cat 793?

The Cat 793: Cat 777 1,140 L, Cat 793 4,354 L (fuel tank), a 282% difference.

Which is narrower to transport, the Cat 777 or Cat 793?

The Cat 777: Cat 777 6.2 m, Cat 793 8.6 m (overall width), a 28% difference.

Where do these figures come from?

Each model's own published spec sheet or brochure, linked under the table. Builds differ by market and year, so confirm the figures for a particular machine with its dealer.

Can I rent or buy these machines in the UAE?

Each model's page lists the ones for hire and for sale on EquipmentsFinder now, with typical prices in AED.